Blower Door Test in Highland Park borough, NJ

How Is A Blower Door Test Conducted?

While performing blower door test in Highland Park borough, NJ, technicians make sure exterior doors and windows are shut tight and interior doors are open for uniform pressure. An adjustable aluminum frame and fabric panel are placed within a central exterior doorway to conduct the test. Next, a calibrated fan is mounted on the frame to reduce indoor pressure to 50 Pascals — similar to the force of a 20 mph wind on the building.

As the fan creates negative pressure, outside air infiltrates the home through gaps and small openings. A precise tool called a nanometer is used to compare the pressure generated by the fan with that inside the home. The test results are converted into air changes per hour (ACH), which determines the airtightness and performance level of the home in NJ weather.

What Is A Passing Blower Door Test Score?

In Highland Park borough, NJ, residential buildings must meet the benchmarks set by the 2015 International Energy Conservation Code (IECC) or any newer codes adopted locally. In most areas, an acceptable blower door test result is 3 air changes per hour or less, confirming that the home achieves optimal energy efficiency. By meeting this standard in your blower door test in Highland Park borough, NJ, you can enjoy lower utility bills and peace of mind with code compliance.

Why Do I Need A Blower Door Test?

The State of NJ and numerous local municipalities adhere to the IECC (International Energy Conservation Code), which mandates blower door test for all newly built or renovated residential homes. We regularly provide blower door test in Highland Park borough, NJ for home builders, contractors, and homeowners working to meet local code requirements and close permits. A duct leakage test is sometimes required if any HVAC components or duct lines are found beyond the building’s thermal envelope. Learn more about energy code compliance.

Performing blower door test in Highland Park borough, NJ allows homeowners to identify and fix leaks. The test makes air infiltration visible, uncovering opportunities to reduce energy loss. Though a blower door test lasts just a few hours, it offers a long-lasting impact on your home’s comfort, durability, and performance year-round in NJ.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Choose an appropriate air barrier, like Tyvek or Zip Sheathing, and ensure all seams are accurately and securely taped.
• Use insulation that has the designated R-value and confirm it’s properly applied throughout the building envelope for maximum efficiency.
• Seal all penetrations in exterior walls using caulk or spray foam.
• Ensure doors and windows are properly installed, caulked, and weather-sealed.
• Seal all joints and gaps that connect conditioned and unconditioned areas such as basements, attics, and crawl spaces.
• Many local municipalities issue code compliance checklists — the Philadelphia example is available here.
• Local Energy Audits identifies and repairs leaks on-site using thermal imaging tools, caulk, and high-quality spray foam./li>
• In the majority of cases—over 90%—we reach a passing score within two hours and provide all closing documentation.